Predictive biomarker modeling of pediatric atopic dermatitis severity based on longitudinal serum collection
| Autor: | Rob Tepper, Allyson Satterwhite, Jochen Schmitz, Jonathan T. Sims, Tristan Hayes, Mark H. Kaplan, Kim Robling, Benjamin J. Ulrich, Sean E. Sissons, Sarah M. Engle, Ching-Yun Chang |
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| Rok vydání: | 2020 |
| Předmět: |
education.field_of_study
medicine.diagnostic_test business.industry Immunology Population Atopic dermatitis Disease Immune dysregulation medicine.disease Systemic inflammation medicine.disease_cause Immune system medicine Immunology and Allergy Biomarker (medicine) SCORAD medicine.symptom education business |
| Popis: | Background: The pathogenesis of atopic dermatitis (AD) results from complex interactions between environmental factors, barrier defects, and immune dysregulation resulting in systemic inflammation. Therefore, we sought to characterize circulating inflammatory profiles in pediatric AD patients and identify potential signaling nodes which drive disease heterogeneity and progression. Methods: We analyzed a population of 87 infants that were at high risk for atopic disease based on dermatitis diagnoses. Clinical parameters, serum, and peripheral blood mononuclear cells (PBMCs) were collected upon entry, and at one and four years later. Within patient serum, 126 unique analytes were measured using a combination of multiplex platforms and ultrasensitive immunoassays. Results: We assessed the correlation of inflammatory analytes with AD severity (SCORAD). Key biomarkers, such as IL-13 (corr=0.47) and TARC (corr=0.37), among other inflammatory signals, significantly correlated with SCORAD across all timepoints in the study. Flow cytometry and pathway analysis of these analytes implies that CD4 T cell involvement in type 2 immune responses were enhanced at the earliest time point (year 1) relative to the end of study collection (year 5). Importantly, forward selection modeling identified 18 analytes in infant serum at study entry which could be used to predict change in SCORAD four years later. Conclusions: We have identified a pediatric AD biomarker signature linked to disease severity which will have predictive value in determining AD persistence in youth and provide utility in defining core systemic inflammatory signals linked to pathogenesis of atopic disease. |
| Databáze: | OpenAIRE |
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